Standard Specification rau Screws

Cov qauv siv feem ntau yog cov hauv qab no:
GB-Tuam Tshoj National Standard (National Standard)
ANSI-American National Standard (American Standard)
DIN-German National Standard (German Standard)
ASME-American Society of Mechanical Engineers Standard
JIS-Japanese National Standard (Japanese Standard)
BSW-British National Standard

Ntxiv rau qee qhov yooj yim, xws li lub taub hau tuab thiab lub taub hau sab nraud, feem ntau sib txawv ntawm cov qauv hais rau cov ntsia hlau yog cov xov.Cov xov ntawm GB, DIN, JIS, thiab lwm yam yog tag nrho hauv MM (millimeters) , collectively hu ua metric threads.Cov xov zoo li ANSI, ASME, yog nyob rau hauv nti thiab hu ua American standard threads.Dhau li ntawm metric threads thiab American threads, kuj tseem muaj BSW-British tus qauv, thiab cov xov tseem nyob hauv nti, feem ntau hu ua Whitworth threads.

Cov xov metric yog nyob rau hauv MM (mm), thiab nws lub kaum sab xis yog 60 degrees.Ob American thiab Imperial threads yog ntsuas nyob rau hauv nti.Lub kaum sab xis ntawm American xov kuj tseem yog 60 degrees, thaum lub kaum sab xis ntawm cov xov British yog 55 degrees.Vim qhov sib txawv ntawm kev ntsuas, cov qauv kev sawv cev ntawm ntau cov xov kuj sib txawv.Piv txwv li, M16-2X60 sawv cev rau metric xov.Nws tshwj xeeb txhais tau tias lub nominal txoj kab uas hla ntawm cov ntsia hlau yog 16MM, lub suab yog 2MM, thiab qhov ntev yog 60MM.Lwm qhov piv txwv: 1/4-20X3/4 txhais tau hais tias cov kab lus Askiv.nws lub ntsiab lus tshwj xeeb yog qhov nominal txoj kab uas hla ntawm cov ntsia hlau yog 1/4 nti (ib nti = 25.4MM), muaj 20 cov hniav ntawm ib nti, thiab qhov ntev yog 3/4 nti.Tsis tas li ntawd, yog tias koj xav qhia cov neeg Asmeskas ua cov ntsia hlau, UNC thiab UNF feem ntau yog ntxiv tom qab British tsim cov ntsia hlau kom paub qhov txawv ntawm Asmeskas cov xov coarse thiab American-ua cov xov zoo.

Yihe enterprise yog ib lub tuam txhab tshwj xeeb hauv kev tsim cov khoom lag luam hauv Teb Chaws Asmeskas amchine screws ANSI, BS tshuab ntsia hlau, ntsia liaj qhov rooj corrugated, indlcuidng 2BA, 3BA, 4BA;German ua tshuab screws DIN (DIN84 / DIN963 / DIN7985 / DIN966 / DIN964 / DIN967);GB Series thiab lwm yam ntawm cov qauv thiab cov khoom tsis-tus qauv xws li tshuab screws thiab txhua yam ntawm tooj dag tshuab screws.